Keeps on restarting if i attatch my hdd other wise boots up fine

[TH3 KiD]

hello, my pc keeps on restarting, sometimes without even the display to come. Or sometime after the display has been shown. I can never go past the bios. If i remove the hdd it boots up fine and stays on for unlimited time, but asks for a bootin disk. Same goes with my other hdd, both bootup fine on my other pc.

Western Digital 250GB
Gigabyte GA P35DS3L
9800gx2
750 watts
4 gb ram(tried one ram, all work fine on other pc)

The VOLTAGES from psu are fine too.

 

[ulysses35]

I presume both PC's have different motherboards ? The most likely culprit for boot failure (assuming windows installation works correctly) is that the BIOS on one PC is set to ACHI for the HDD and the other to IDE

 

[TH3 KiD]

Yes, both have different motherboards. The one which doesnt work is gigabyte. Can you explain more about that IDE and all>?